Abstract:
Landsat TM data are available from December 1982 to February 1983 (Landsat 4) and from April 1984 onwards (Landsat 5). Most of the ESA archive has been acquired and processed at receiving stations in Fucino (Italy), Kiruna (Sweden) and Maspalomas (Gran Canaria, Spain). However, the archive contains also a substantial number of data acquired and processed by receiving ... stations elsewhere (e.g. the US, Brasil, Canada, etc).

As well as being available in Raw Format, Landsat data is corrected for distorsions in the imagery to a number of levels: one is the Corrected Pre-Flight Radiometric Correction and Cubic Convolution resampling product.

A Landsat 4 and 5 TM scene has an instantaneous field of view (IFOV) of 30 square meters in bands 1 through 5 and band 7, band 6 has an IFOV of 120 square meters on the ground.

The resolution for the TM sensor is shown below: -------------------- Resolution Landsats 4-5: (meters) Band 1: 30 Band 2: 30 Band 3: 30 Band 4: 30 Band 5: 30 Band 6: 120 Band 7: 30 -------------------

Landsat TM SCPRCC Product is available in a digital format for:

- Full scene: Full scene cover approximately 183 x 172.8 km. A standard full scene is nominally centred on the intersection between a path and row (the actual image centre can vary by up to 20 km). For a floating full scene the placement along the path is chosen by the customer. The centre point of the floating full scene is defined by the path number and the required latitude. A full image is composed of 6920 pixels x 5760 lines and each band requires 40 Mbytes of storage space.

- Quarter scene: ESA TM data (digital or photographic) is available in quadrants, each measuring 91.5 x 86 km. This option is available for raw data, system corrected or geocoded products. Numbering of standard quarter scenes is as follows: for floating quarter scenes the placement along-path and across-path is chosen by the customer. The centre of the floating quarter scene is defined by latitude and longitude.

- Mini scenes: ESA TM data is available as images covering an area 47.2 x 44 km (a 16th of a full scene). This option is available for raw data, system corrected or geocoded products. The scenes are floating and the placement along-path and across-path is chosen by the customer. The centre of the scene is defined by latitude and longitude.